Coming from a family of bank employees, Marina Mesure was born in Marseille and grew up in Gréasque before leaving to study at HEC Montréal,[1][2] from which she graduated in 2013.

For several years, she campaigned for the General Confederation of Labour, in particular against the Posted Workers Directive 1996, and acted as a social adviser to the European Federation of Building and Woodworkers.

[6] She was a candidate in the 2022 legislative elections in the Bouches-du-Rhône's 10th constituency, where she was widely defeated in the second round by José Gonzalez of the National Rally.

However, she received the majority (50.35%) of the vote in the former communist stronghold of Gardanne.

[7] Following Manuel Bompard's election to the National Assembly in June 2022, she succeeded him as MEP in July.